The Reducer,boss, cataloged under National Stock Number 4730-00-139-3235, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Rosemount Analytical, Inc. Div Process Analytical Division. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-139-3235 |
| Primary Part Number | 177320 |
| Item Name | Reducer,boss |
| FSC / FSG | 4730 / 47 — No Item Name Available |
| Manufacturer | Rosemount Analytical, Inc. Div Process Analytical Division |
| Status | ACTIVE |
| Reduced Passage Nominal Inside Diameter | 0.156 INCHES ALL ENDS IN |
| Nominal Thread Size | 0.375 INCHES FIRST END IN |
| Nominal Overall Length | 1.187 INCHES IN |
| Thread Series Designator | UNF ALL ENDS |
| Nominal Thread Size | 0.438 INCHES SECOND END IN |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Class | 2B FIRST END |
| Connection Style | GASKET SEAL (BOSS) FIRST END |
| Thread Class | 2A SECOND END A |
| Reducer Type | CONCENTRIC |
| Connection Style | EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 177320 | Rosemount Analytical, Inc. Div Process Analytical Division (USA) |
NSN 4730-00-139-3235 is a Reducer,boss, manufactured by Rosemount Analytical, Inc. Div Process Analytical Division, classified under FSC 4730 (No Item Name Available). Status: active.
NSN 4730-00-139-3235 has 1 cross-referenced part number: 177320 (Rosemount Analytical, Inc. Div Process Analytical Division).
There are 3 known substitutes for 4730-00-139-3235: 4820-00-397-6784, 5130-01-672-0580, 5998-01-701-3741. Verify interchangeability with system specifications before substitution.
Key specifications for 177320: Reduced Passage Nominal Inside Diameter: 0.156 INCHES ALL ENDS IN; Nominal Thread Size: 0.375 INCHES FIRST END IN; Nominal Overall Length: 1.187 INCHES IN; Thread Series Designator: UNF ALL ENDS. 11 total characteristics are documented in the Federal Logistics Information System.